Insole marking and indenting machine



Jan. 11, 1955 s, cLARK 2,699,110

INSOLE MARKING AND INDENTING MACHINE Filed Oct. 22, 1949 3 Sheets-Sheet 1 vim- Inventor A/fredfi. C/ar/r By his Attorney Jan. 11, 1955 A. s. CLARK INSOLE MARKING AND INDENTING MACHINE 3 Sheets-Sheet 2 Filed Oct. 22, 1949 [n ventor A/fred 5. C/ark fly hzs Attorney 3 Sheets-Sheet 3 [nven f0?" A/freo S. C/ar/r Byhzs Attorney Jan. 11, 1955 A. s. CLARK.

INSOLE MARKING AND INDENTING MACHINE Filed Oct. 22, 1949 United States Patent INSOLE MARKING AND INDENTING MACHINE Alfred S. Clark, Beverly, Mass, assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application October 22, 1949, Serial No. 123,075 1 Claim. (Cl. 101-26) This invention relates to machines for operating upon shoe insoles and it is herein disclosed as embodied in a machine for making a reference mark upon an insole at or in the vicinity of the heel breast line to serve as a guide for the performance of subsequent operations. For an example of a marking device of this general character, reference may be had to United States Letters Patent No. 1,113,544, granted October 13, 1914, upon the application of Miller Cook, Jr. disclosing, in addition to a marking device, instrumentalities for making incising cuts in the sole. While similar cutting devices can conveniently be included in a machine of the type disclosed herein, the disclosure of the illustrated machine has been simplified by the ommission of any showing of them.

The marking device of the machine disclosed in United States Letters Patent No. 1,113,544 comprises an indenting tool for making a score mark in a leather insole. Score marks, however, although their use has long been common, are not as plainly visible as ink marks; and ink marks are therefore preferable on many types of insoles. On those types of insoles requiring a guide mark on the surface which will be visible in the finished shoe, such as the grain surface of a leather insole, an ink mark would be unsightly and a score mark is therefore preferable. Since either type of mark may be called for, according to the type of insole to be marked, it becomes desirable to provide instrumentalities in the same machine which may be employed selectively to make these different types of marks.

The term ink is used herein to denote not only all forms of ink, but also such dies or stains as may be found suitable for marking insoles.

It is an object of the present invention to provide a machine having alternative devices for making different types of reference marks upon shoe insoles. In accordance with a feature of the invention, the illustrated machine is provided with a carrier having a bore for slidably engaging one of a pair of different interchangeable marking devices of which one may be an ink marker and the other an indenting tool. A spring on the carrier presses the ink marker down yieldingly on an insole, or a setscrew secures the indenting tool positively in the bore to insure positive penetration of the indenting tool into the surface of an insole;

These and other features of the invention will appear from the following detailed description of an illustrative embodiment of the invention, when considered in connection with the accompanying drawings, and will be pointed out in the appended claims.

In the drawings,

Fig. 1 is a angular View of an illustrative machine embodying the invention;

Fig. 2 is a view partly in elevation and partly in longitudinal section of the machine shown in Fig. 1;

Fig. 3 is an angular view of an ink reservoir and an ink marking tool in ink-receiving position with respect to said reservoir;

Fig. 4 is a detail view of the lower portion of a scoring tool of the indenting type;

Fig. 5 is a view of the in Fig. 4;

Fig. 6 is a view in longitudinal section of an ink-marking tool; and

Fig. 7 is a plan view of an insole to which an ink mark has been applied.

The illustrated machine is adapted to be fitted with complete tool shown partially a sole marking tool such as an ink marker 10, shown in Figs. 1, 2, 3 and 6 or with a pair of cooperating sole marking tools 12 (Figs. 4 and 5) and 13 (Figs. 1 and2) of the'scoring type. The ink marker 10 makes a mark M (Fig. 7) on an insole S at or adjacent to the heel breast line. The scoring tools 12 and 13 make scoring marks in the same locality in the form of a line of indentations on both the upper and lower surfaces of the insole.

The machine comprises a frame 14 having a work supporting plate or table 16 and a rocking frame 18 which carries the marking tool, either 10 or 12. The scoring tool 13 is stationary and it consists of a line of serrations extending above the surface of the table 16 and formed on a member which is inset into the table. The rocking frame 18 is pivotally mounted upon a pair of trunnion pins 20 secured on the frame 14. The forward end of the rocking frame 18 consists of a carrier block 22 in which the marking tool is mounted. The rocking frame 18 has a pair of rearwardly extending bars between the rear ends of which is trunnioned a block 24. Threaded through the block 24 is a rod 26 which is rotatably attached to a bracket 28 having an eccentric strap 30. Engaging the strap 30 is an eccentric 32 on a shaft 34 journaled in suitable bearings in the frame 14. The shaft 34 is driven by any suitable source of power and may be driven continuously or, if desired, through a onerevolution clutch (not shown). The upper end of the rod 26 has a knob 36 to facilitate turning for the purpose of adjustment of the rocking frame 18 about its trunnions 20. A Wing nut 38 looks the rocking frame 18 in adjusted position on the rod 26.

The insole S rests upon the table 16 with its heel end against an end gage 40, the position of which, forwardly and rearwardly of the machine, is controlled by the operator through a helical cam 42 secured upon a shaft 44 and turned by a hand wheel 46 which is graduated with reference to shoe lengths. By turning the hand wheel 46 to the size number indicated for any particular length of shoe for which the insole is intended, the gage 40 will be set to determine the position of the insole with the heel breast line in a desired relation to the locality of contact of the marking tool.

The machine is further provided with a pair of edge gages 48 and 50 which are urged toward each other by a coil tension spring 51 (Fig. 2) and which are carried indirectly by transverse sliding rods 52 and 54 respectively, said rods having rack teeth and being simultaneously in engagement with a pinion 56 which insures their equal and opposite movement toward or from a common center line.

The rocking frame 18 may also carry a presser 58 for pressing the sole against a width marker mounted on a slide bar 60, and a presser 62 for pressing the insole against a size marker carried by a wheel 64. The width marker bar 60 is held in place by a spring detent 66. The resulting width and size marks will be made upon that sillrface of the insole which will be visible in the finished s cc.

The machine as so far described is, with the exception of the marking devices 10 and 12, similar to the machine disclosed in the above-mentioned Letters Patent No. 1,113,544 to which reference may be had for a more complete understanding of its construction and mode of operation.

The ink marking tool 10 comprises a metal tube 68 filled with several cylindrical pieces of hard felt 70 in end-to-end contact with each other. A single long piece of felt would be satisfactory, but the shorted pieces are more economical in View of the need for occasional replacement of the lowermost piece, which extends below the bottom of the tube 68 and is tapered as indicated by the reference numeral 72 to shape its work-engaging portion in accordance with the desired impression to be formed by it on the insole. Secured in the upper end of the tube 68 is a ferrule 74 upon which is mounted a spring-pressed closure cap 76 hinged upon a pin 78. The spring (not shown) for urging the cap 76 to closed position is similar to a spring 120, later to be described. Secured upon an intermediate portion of the tube 68 is a split clamping block 82 which is tightened about the tool by a screw 84. The upper surface of the carrier block 22 forms an abutment 83 for engaging a corresponding abutment 85 on the lower surface of clamping block 82. Extending laterally from one side of the clamping block 82 is a pin 86 the purpose of which will later be explained.

The scoring marker 12 comprises a serrated workengaging member 88 which is secured by screws 90 upon the lower end portion of a rod 92. Embracing the rod 92 is a clamping block 94 similar to the clamping block 82, and having an abutment 95 for engaging abutment 83 on the carrier block 22.

The external diameter of the tube 68 is the same as that of the rod 92 and either will fit slidingly in a bore provided for them in the carrier block 22 at the forward end of the rocker frame 18. The bore in the carrier block 22 extends heightwise, i. e., in the direction of movement of the block, when the block is in position for the tool to engage the work piece. The tube 68 and the rod 92 can be adjusted both heightwise and angularly (rotationally) in their associated clamping blocks 82 and 94 before the screws 84 are tightened, whereupon the heightwise position of either member is determined by the engagement of the abutment on its associated clamping block with the abutment 83 on the upper surface of the block 22, and the angular or rotary position is determined by a pin 95 upstanding from the block 22 and engaging a recess 97 in the associated clamping block. Either marking tool, or 12, after removal from the machine, can readily be returned to its position of previous adjustment. The scoring marker 12 is held positively in the block 22 by a set screw 96 (Fig. 2) to insure positive pressure upon the work piece. The ink marking tool 10 is held yieldingly against the work piece by a spring 98 carried by the forward portion of the rocking frame 18 and bearing down upon the pin 86. It is evident that as the forward end of the rocker frame descends the lower end of the felt 72 will be brought into contact with the work piece and the spring 98 will yield and hold the felt with a predetermined pressure against the work piece. Adjustment of the clamping block 82 up or down upon the tube 68 will vary the length of dwell during which the felt is in contact with the work piece. When the ink marker 10 is in use the set screw 96 is backed away out of contact with it.

The insole S, during the marking operation, rests on the table 16 in a position determined by the edge gages 48 and 50 and the end gage 40, that portion of the insole which is to be engaged by the marking tool, either 10 or 12, being directly supported by the serrations of the scoring tool 13. The surface of the insole which is to be visible in the finished shoe is down, and the surface which is to be invisible is up. The ink mark M (Fig. 7) will therefore be made on the invisible surface of the insole; and the yielding pressure of the ink marking tool 10 under the influence of the spring 98 is not great enough to cause the scoring tool 13 to mark the visible surface. When a mark is required upon the visible surface, the ink marker 10 is replaced by the scoring tool 12; and, since the scoring tool 12 is held positively in the rocking frame 18 by the set screw 96, the insole will be pinched between the scoring tools 12 and 13. The scoring tool 13 will thus mark the visible surface of the insole with a line of indentations that will be less unsightly than an ink mark.

In order to maintain a suitable amount of ink in the felt 72 and to avoid an excessive quantity which might lead to dripping, the machine is provided with an improved moistening device in the form of a reservoir 100 having side walls and a top wall 102. Dovetailed into the top wall 102 is a slidable cover 104 which can be moved to afford access to the interior of the reservoir. Extending up from the top wall 102 are a pair of bosses 106 and 108. Secured by a set screw 110 in the boss 106 is a tube 112 extending both up above the top of the boss and down below the level of ink in the reservoir, but not all the way to the bottom of the reservoir. The internal diameter of the tube 112 is equal, with allowance for free sliding clearance, to the external diameter of the tube 68. Fitted Within the lower portion of the tube 112 is a plug of felt 114 extending down through the open lower end of the tube 112 into the ink and also extending up above the level of the ink. The top of the tube 112 is normally closed by a cap 116 pivoted upon a pin 118 and urged to closing position by a torsion spring 120. The cap 116 can readily be raised to permit the insertion of the tube 68. When the tube 68 is thus inserted, the lower end of the felt 70 will rest upon the upper end of the felt 114 and will absorb ink therefrom by capillary attraction without such undesirable wetting of the felt as would result from dipping it into the liquid.

The boss 108 is fitted with a similar device for supplying ink to a second ink marker similar in all respects to the one already described. Thus one of the ink markers can be in use, while the other is being charged with a fresh supply of ink. If desired, additional ink can be supplied to the felt 70 by opening the cap 76 and applying ink to the upper end of the felt.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

In an insole marking machine, a support for an insole, a carrier movable heightwise over said support, said carrier having a bore extending in the direction of movement of the carrier for slidably engaging a marking device, means for moving the carrier down toward the insole support to bring the marking device into engagement with the insole, a spring on the carrier outside the bore having one end engaging the carrier at its opposite end engageable with the marking device slidable in the bore to urge the marking device downwardly relative to the carrier yieldingly against an insole, an abutment on said carrier for engaging a corresponding abutment on the marking device to limit downward sliding movement of the marking device in the bore, and a set screw threaded in the carrier of a length to extend into the bore for adjustment into and out of contacting relationship with the marking device for releasably securing the marking device positively in the bore.

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